Hot Air Balloon

A Hot Air Balloon is a sexual act involving two partners. One partner, the "balloon", prepares for the act a day before by eating foods that contain high concentrations of fiber and dairy. For best results, the balloon should avoid defecation until the next day when the Hot Air Balloon is to be performed. When both partners are ready for the Hot Air Balloon, the balloon positions his/her anus directly above the other partner, or the "ballooner". The ballooner opens his/her mouth to take a full load of feces from the balloon. Without swallowing or spilling any of the (most likely very liquid) feces, the ballooner must then blow up the balloon. That is to say, he/she must blow the hot liquidy feces back into the balloon's ass.

1: "Taco Bell tonight?"
2: "Sure, just hold it in so we can Hot Air Balloon, tomorrow!"